ASTMA416A416M05预应力混凝土用未涂层的7股钢绞线的标准规范Word文件下载.docx
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ASTMA416A416M05预应力混凝土用未涂层的7股钢绞线的标准规范Word文件下载.docx
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本标准已被国防部相关机构批准采用。
1、范围
1(1本规范包含两种和两个级别的7股未涂层的用于预应力混凝土的钢绞线。
这两种钢绞线分别是低松弛的和应力全释放的(普通松弛)。
低松弛钢绞线被称为标准型,应力释放的钢绞线一般不予以提供除非特别需要,或者购买者和生产者有协议。
250级和270级都有最小的强度要求分别是1725(ksi)MPa和1860MPa(270ksi),各以其级别命名。
(2在英制体系和SI体系中两者的指标都认为是标准的,在本文内,英制指标1
出现在括号内。
由于两种体系的指标并不是完全等价的,因此,各自的体系必须独立使用。
混合使用两种指标可能导致使用本规范时没有一致性。
1(3提供者要求使用的预应力钢绞线应用于地下锚定装置时要特别要求15.2mm(0.6-in)直径的钢绞线。
2、参考引用文件
[2]2(1ASTM标准
A370钢制品机械试验的标准试验方法及定义。
A981评估预应力地下锚定装置用270级未涂覆15.2mm(0.6in)直径预应力钢绞线结合强度的标准试验方法。
E328材料和结构件的应力松弛试验。
2(2美国军用标准
[3]MIL-STD-129可以装载和存贮产品的标记规定
[3]MIL-STD-163可以装载和存贮的钢厂出产钢产品
2(3美国联邦标准
FED-STD。
NO.123出厂产品的标记规定(国内机构)
3、术语
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hasnotbeenconnectedtotheOfficenetworkwiththecitymunicipalgovernmentdepartments,networkingreadyto,toaccessgovernmentofficenetworkbeforetheendofApril.Applicationofinformationtechnologyshouldbeplacedinaprominentposition,strengtheningtheinformationtechnologytrainingforadministrativestaff,expeditetheimplementationofelectronicdocumentprocessing,theleadintheuseofcomputerdrafting,approval,issuanceofofficialdocuments,assoonaspossibletopromotepaperlessandonlinetransmissionofofficialdocuments,improvingtheapplicationlevelofthecompletedsystem.Todevelopandimprovesecuritymeasures,establishandperfectrulesandregulations,implementationoftheaccountabilitysystem,enhanceGovernmentWebsitesmaintenanceandnetworksecuritymanagement.Toincreasetheintensityofwork,completedthe2005taskstatementofsystemofGovernmentAdministrationinformatizationconstructioninthecity.7,results-oriented,results,furtherdeepeningtheopengovernment.Thisyear,nationalandprovincialpublicaffairsworkonanumberofnewrequirements,thecityalsohasthefurtherdevelopmentofopendefinedspecifictasks.SystemofgovernmentofficesaretheCounty(district)andsectoralpublicaffairsfocalpointsoftheworkof,mustcomefromthetransformationofgovernmentfunctionsandoptimizingthedevelopmentenvironment,settheheightoftheimageoftheGovernment,effectivepublicaffairsworkinhand,grabbedasuccess.ToopenGovernmenttotheGovernmentsectoragencies,unitsandverticalmanagementunitsdevelopmentextendstoadvanceonvillageaffairs,andstrivetoachievefullcoveragewithoutgaps.Toadheretothe"
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3(1适合本规范条目的定义
3(1(1线、股——一一个中心钢丝被六个钢丝紧密围起来的一组钢丝,捻距为钢绞线公称直径的12到16倍。
(参见GB/T5224-2003第7页)
3(2讨论——捻制方向可能为左或右,然而,不同捻制方向的钢绞线不能拼接在一起。
4、订货内容
4(1按照本标准订货的7股低松弛应力或应力松弛(普通松弛)钢绞线应包括以下内容:
4(1(1数量(米制[英尺])
4(1(2钢绞线直径
4(1(3钢绞线等级
4(1(4钢绞线种类
4(1(5包
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- 关 键 词:
- ASTMA416A416M05 预应力 混凝土 涂层 股钢绞线 标准规范